Running is not for me. I’ve tried it in the past, I did the couch to 5 k. Very proud of myself, I stuck with the program. However, my knees started to seriously hurt, even with good shoes. What is another good cardio exercise to do besides running?

Jennifer F.
Do not underestimate walking! At a good clip (I’ve heard it called “walking with purpose”) you are working your heart and lungs. Biking, if you live in a bike-friendly town. If you have access to a gym, the elliptical machine is easy on joints. Swimming also! But if you don’t have a gym membership (I don’t!), walking is great. There are free videos out there — you could do cardio classes!